Weatherseal base



FIG. 1 is a perspective view of the weatherseal base;

FIG. 2 is a right end view of the weatherseal base;

FIG. 3 is a left end view of the weatherseal base;

FIG. 4 is a right side view of the weatherseal base;

FIG. 5 is a left side view of the weatherseal base;

FIG. 6 is top view of the weatherseal base; and,

FIG. 7 is a bottom view of the weatherseal base.

The weatherseal base is shown broken along its length to indicate that the weatherseal base may be formed in any length. The weatherseal base profile is shown in uneven broken lines for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a weatherseal base, as shown and described. 